POE 802.3af and IP Phone

[ngss]

Apart from IP Phone 7970, what other ip phone 79xx series that will support POE 802.af? and expected availability?

Thanks

SSng

[patsbc]

Future phones will support both 802.af and Cisco's POE. I'm under NDA so I can't give you model numbers or dates.

Be aware that with the 7970, you will need a power adapter to use full brightness on the set, or full duplex speakerphone, regardless if you are using 802.af or Cisco POE.

Pat

[ngss]

Pat,

I wonder why? How much power that 7970 required to make it full brightness. What's the Class Number is 7970 fall into? I noticed that the 7970 only used 10.25W. Isn't that you can draw 15.4W under 802.3af spec?

Thanks

SSng

[peter_tsonis]

Here is my understanding but needs to be confirmed by Cisco.

The 7970 is able to get its full power from in-line power and requires the following two elements :

- Latest Catalyst switch that support 802.af (3560, Cat4k)

- CDP enhanced to negotiate the power with the phone.

For example, the new 3560 supports 802.3af but we will need to wait for a future release to get the enhanced CDP. So today, you can't get full power with the 3560 thus requiring the external power adapter.

The latest Catalyst 4500 blades (WS-X4248, WS-X4548) with CatOS 8.3(1)GLX seems to support full power to the 7970 because it also has the enhanced CDP built-in.

Can someone can confirm all this ?

Hope this help,

Tony

[ngss]

Thanks for keep the discussion going.

I just happen to stumble upon few slides somewhere showing IP Phone 7965 and 7975 in the pipeline.

My guess that this version should get the full power!

PS. Apologise if I cause a stir in this forum